INTRODUCTION Development of tin (IV) oxide based catalyst for carbon monoxide emission control.
ISSN: 2180-1053 Vol. 1 No. 1 July-December 2009 Development of Tin IV Oxide Based Catalyst fo Carbon Monoxide Emission Control
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DEVELOPMENT OF TIN IV OXIDE BASED CATALYST FOR CARBON MONOXIDE EMISSION CONTROL
Imran Syakir Mohamad
1
, Mohd Haizal Mohd Husin
1
, Safarudin Gazali Herawan
1
, Muhamad Zahir bin Hassan
1
, Mohd. Ridzuan Nordin
2
, Wan Azelee Wan Abu Bakar
3
, Nor Aziah Buang
3
, Abdul Rahim Yacob
3
1
Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, Locked Bag 1752, Pejabat Pos Durian Tunggal,
76109 Durian Tunggal, Melaka, Malaysia.
2
Centre for Graduate Studies, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Kuantan, Pahang, Malaysia.
3
Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Darul Takzim, Malaysia.
ABSTRACT Tin IV oxide has been recognized as an alternative catalyst for carbon monoxide
gas treatment generated from vehicular and industrial activities. Carbon monoxide is a poisonous gas produce from incomplete burning of hydrocarbon based fuel
and emited directly from vehicles tailpipes which can afect human health. In this research, tin IV oxide was used as a catalyst with the addition of cobalt II
oxide and nickel II oxide as dopants, prepared by modiication of sol-gel method. The catalytic ability was tested towards the oxidation of carbon monoxide using
Continuous Fixed Bed Reactor SELOX instrument. Two catalysts, ECAT1-400 calcined at 400°C and ECAT2-600 calcined at 600°C gave a promising catalytic
ability towards carbon monoxide oxidation. Both catalysts completed the carbon monoxide oxidation to carbon dioxide at 215°C and 200°C commercial catalyst, Pt
Al
2
O
3
at 200°C. Several techniques were used in this research to characterize the physical and chemical properties of the catalyst materials. The nitrogen adsorption
analysis reveals that the best prepared catalyst, ECAT2-600 is in form of mesopore, open cylindrical in shaped with pore diameter of 10nm. The x-ray difraction analysis
shows the presence of SnO
2
tetragonal and Co
3
O
4
cubic phase which act as the active site in the catalytic oxidation. The existence of cobalt oxide in a mixture of Co
2+
and Co
3+
expected to contribute the excellent oxidation of carbon monoxide. KEYWORDS: catalyst, carbon monoxide oxidation